Kalitine, Boris S., and Katsiaryna S. Bahaliubskaya-Siniakova. “The Dynamics of the enterprise’s Income in the Extensive Method of Development”. Journal of the Belarusian State University. Economics, no. 2, Oct. 2018, pp. 16-24, https://journals.bsu.by/index.php/economy/article/view/2199.